# coding=utf-8
# python3 函数指定类型：https://blog.csdn.net/sgyuanshi/article/details/96192887

from typing import List


class Solution:
    def twoSum(self, nums: List[int], target: int) -> List[int]:
        for i in range(len(nums)):
            for j in range(i + 1, len(nums)):
                if nums[i] + nums[j] == target:
                    return [i, j]
        return []


if __name__ == "__main__":
    print(Solution().twoSum([2, 7, 11, 15], 9))  # [0, 1]
